Dude, I think this game has beaten me to the rawest scene yet in this kind of games... I think Luna's bg is fucking brilliant as well as disgusting, the worst thing of all, is that we know that things like that really happen, and I think being aware of it makes the dev's narrative gain much more strength.
I can only say that I hope Isabel and Gracie have strong stories behind them too, because it's obvious that for a current story, the mc would clearly go the way of Luna (perfectly understandable), but we shouldn't despise the rest of the characters, who still have their things even if they are not so emotional or shocking in principle.
Again, this is one of the best games out there right now, and I look forward to continuing to enjoy the updates and letting the dev know what a great job he's doing, brilliant.